how many pokemon cards are in a deck pokemons would you have deck? I have noticed that beyond 8, the starts to become more and more inconsistent, not unplayable by any means each a card Pokémon TCG Deck Building Guide

Thanks to Whispers in the Well and powerful cards like Demona and Hades, thats unlikely to change anytime soon, and Blurple continues to be a meta relavent choice in the Whispers in the Well format

Cummulative Upkeep , an upgraded version of the 'upkeep' that we've seen on various cards before, also show up here -- a rather unpopular mechanic where the tax on maintaining your permanents increases each turn

You can only discard a card from your hand

This attack does 30 damage to that Pokemon and 10 damage to each of your opponent's other Pokemon

The packs are simply a bonus for getting the combined deck rather than the separate decks